Floor planer and scraper.



G. EKBERG.

FLOOR PLANER AND SGRAPER. APPLICATION FILED MAY 2, 1911. 1,()5 3,284 Patented Feb. 18, 1913.

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FLOOR PLANER AND SGRAPER.

APPLICATION FILED MAY 2, 1911.

Patented Feb. 18, 1913.

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G. EKBERG. I FLOOR PLANER AND SCRAPER.

APPLIGATION FILED MAY 2.1911.

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FLOOR PLANER AND SCRAPER.

Specification of Letters Patent.

Patented Feb. 18, 1913.

Applicat'ioufiled May 2, 1911. Serial No. 624,620.

bhQ above, and other objects in view, invented the device illustrated in 'ng' drawings in which I perspective view of my dea is a longitudinal, sectional.

view a wheel operating device. 3 1S a side elevation or my invention. Jig. -'l is Y 1 11 view thereof. 1s

i 21 idinal, ert-ical, sectional view. big. a rear end elevation. Y is a sectional view taken on line iL-ri, Fig. 5.

Like reference characters indicate like parts throughout the specification and in various views in the drawings, in

1 is the body of the floor planer and scraper, having side walls 2 and 3, a front all 4, and a rear wall 5. Upon the upper c e of this body-is a frame 6. supporting a handle 7, means of which the device is operated. Located within the body, near end, is the angularly disposed its forward planer 8, running diagonally from the side 2 to the side 3 of the body. This planer is mounted in a frame 9, that is provided with a thumb screw 10, by means of which the plane may be properly set. The forward ends 11 and 12 of the sides 2 and 3 are recessed at 13 and 14, to receive the extensions 15 and 16 of the plate 17, which is held normally in a lowered position by means of the springs 18 and 19, located in boresQO and 21, in the end wall 4. Secured to the plate 17 is a triangular brush 22, which is adapted to sweeping shavings or other trash from in front of the machine.

Pivotally mounted and angularly disposed within the body are three scrapers,

23, 2 1, and 25. These scrapers are mounted upon the screw shafts 26, which have their hearings in the sides 2 and 3 of the bodv.

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Secured to the upper part of these scrapers are right angular arms 27, the ends of which are threaded and havesetscrews 28, thereon, by means of which the vertical angle of the scrapers may be readily adjusted. The blades 29 of the scrapers are adjusted by means of set screws 30.

Members 31 are pivotally mounted to the rear and forward ends of the sides 2 and 3, and on these members are mounted wheels 33. These wheels set in recesses 34; in the side walls 2 and 3 of the body. To the upper ends 35 are secured link rods 36 and 37, the opposite ends 88 and 39 of which are pivotally secured to the opposing ends l0 and 41, of the members 42 which are mount-- ed upon the shaft 46. Ends 43 of the linked rods 36 are provided with elongated slots as, by means of which they are pivoted to the member 41 by the pintles 45. This slot permits the links to adjust themselves to the various angles to which the wheels may be set.

Adjacent to the ends 35 or" the members 31 are set screws -17 by which the movements of the members 31 may be adjusted. The rod -16 is rotatable and has mounted thereon a vertical rod 48 to the upper end of which the rod 19 operated by a lever handle 50 is secured. The operation of this lever handle is adapted to raise or lower the wheels in relation to the body of the device, so that when it is desired to roll the device across the floor without having the planers or scrapers come in contact therewith it may be done by simply raising the lever handle 50, thus rotating the rod 46 and themembers l2, drawing the links 36 and 37 centerward, vertically adjusting the angle of the members 31, and thereby raising the body up from the floor. I

The cross handle 51 on the handle 7 is rotatable, so that the machine may be operated close to a wall, in which case the handle 51 may be thrown away from the wall so as not to interfere therewith.

The floor planer may be readily converted into a floor sweeper, for while the means for elevating the carriage or casing serves to regulate the depth of cut of the scrapers and planers, said last-named members may be raised'out of engagement with the floor over which the casing is rolled, and owing to the resilient sup ortfor the brush 22-, said brush is adapted to be kept down in contact with the floor when the casing is elevated. However, whether or not the planer and scraper members are moved out of-engagement with the floor the brush will be automatically pressed downwardly by the springs 18, when the body of the casing is being elevated. Normally the weight of the casing will hold the brush 22 in contact with the floor against the tension of the compressible springs 18, the lugs 15 and 16 formed on the member 17 moving in the openings 13; the path of movement of the lugs 15 and 16 is from the top to the bottom of the openings 13 when the springs 18 are relaxed, and the latter will be relaxed when the casing is elevated, for as the abutments 4 move to engage the lugs 15 and 16 there will be a space between the top of the member 17 and the mouth of the spring housing 20 and 21 and the springs 18 will be free to expand in said last-named spaces, thereby preventing the member 17 from moving upwardly, which would lift the brush 22 out of engagement with the floor. In operating this planer and scraper the screws 47 are set so as to allow the body to come down on the floor. The planers and scrapers are then lowered to the floor.

In operation the lever handle 50 is raised, thereby raising the body from the floor when the device may be rolled to a position to start work. The planers and scrapers are adjusted by means of the set screws to cut the proper dept-h into the floor. The lever 50 is thrown down and the device isthen ready for operation. After the first strip has been planed on both of the opposing sides of the room the device is put into position for planing the second strip, and then the screws on the side walls on which the wheels are contacting the planed portion of the floor are set so that that side of the machine will be held sufliciently high. to prevent the planer and scrapers from cutting deeper into the planed portion at which time the machine is ready for operation until the last strip is reached, at which time the wheels are again adjusted to a level with the wheels thus straddling the last strip. Thus the last strip of planing is brought down to a level with the restof the floor.

As some floors are harder'than others it will be-necessary at times for the machine to be heavier than at other times, therefore I have provided openings 52, by means of which weights 53 may be hung onto the sides of the device so as to properly weigh it down.

Having now described my invention, that which I claim to be new and desire to procure by Letters Patent is 1. In combination a casing, a transversely extending member moving vertically at one end of said casing, a brush carried by said member, wheels normally holding said casing above the floor, a plurality of scraping members carried by said casing and normally engaging a floor, springs compressingly holding said brush in contact with the floor synchronously with. said scraping members, means for elevating said casing to move saidscraping membersout of engaging position, said springs relaxing when said casing is elevated to force said brush in contact with the floor, and means for actuating said last-named means 2. In combination a casing, oppositely arranged pairs of wheels, said casing formed with relatively'elongated recesses in which said wheels are mounted to be flush with the sidesof the casing, a lever pivoted intermediate its ends substantially centrally of each side of said casing, pairs of levers pivoted to each side of said casing and having arms disposed in opposite oblique p0sitions and holding a pair of wheels, links pivotally connecting said last-named levers with t-heopposite ends of said first-named levers, said first-named levers being --normally held vertically by said links, a plurality of scraping members mounted in said casing and normally engaging a floor, and

means for turning said first-named levers obliquely to cause said wheels to lift said casing.

3. In combination a casing, ranged pairs of wheels, said casing formed with relatively elongated recesses in which said wheels are mounted to be flush with the sides of the casing, a lever pivoted intermediate its ends substantially centrally of each side of said casing, pairs of levers pivoted to each side of said casing and having arms disposed in opposite oblique positions and holding a pair of wheels, links pivotally connecting said last-named levers with the opposite ends of said first-named levers, said first-named levers being normally held vertically by said links, a plurality of scraping members mounted in said casing and normally engaging a floor, means for turning said first-named levers obliquely to cause said wheels to lift said casing, a handle connected to said casing, and means carried by said handle for actuating said last-named means.

4. A deviceof the character described comprising a casing, oppositely arranged pairs of wheels, said casing formed with relatively elongated side recesses in which said wheels are disposed fiush with the sides of the casing, a transversely extending shaft mounted in said casing, a handle connected to said casing, an arm mounted on said shaft, a rod slidably mounted on said handle for engaging said arm to turn said shaft, said shaft projecting from the sides of said casing, a lever pivoted intermediate its ends to each projecting end of said shaft, scrapoppositely aring members mounted in said casing and In testimon whereof Iaflix my signature normally enga ing the floor, leversicarried in presence 0 two witnesses. by the sides 0 sald casing and supportingi said wheels, and means controlled by sal CARL EKBERG' first-named levers and actuating said last- Witnesses: named levers to cause said casing to be HENRY MARTIN,

elevated. OSCAR HERNAN. 

